Water soluble vitamins lose potency while sitting in water or exposed to moisture. Additionally, vitamins suffer degradation while they are exposed to UV rays, oxygen and heat. The loss is greater when the vitamin contents are spread across the full contents of bottled beverages. The broader the surface area, the greater the exposure. In sharp contrast, Tea of a Kind’s antioxidant vitamin C is stored in the VesslTM closure, which limits exposure to the elements, and VesslTM makes use of opaque plastic and a UV blocker in its cap. Each of the differences in the VesslTM cap are designed to enhance the longevity of shelf-life and therefore increase potency at time of consumption. By introducing the vitamins only seconds or minutes from actual consumption, it optimizes the effectiveness of the nutrient-rich ingredients.